Split out common parts of prom.h

This creates linux/of.h and includes asm/prom.h from it.

We also include linux/of.h from asm/prom.h while we transition.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>

1 files changed, 61 insertions, 0 deletions

diff --git a/include/linux/of.h b/include/linux/of.h
new file mode 100644
index 000000000000..47734ffd9745
--- /dev/null
+++ b/include/linux/of.h
@@ -0,0 +1,61 @@
+#ifndef _LINUX_OF_H
+#define _LINUX_OF_H
+/*
+ * Definitions for talking to the Open Firmware PROM on
+ * Power Macintosh and other computers.
+ *
+ * Copyright (C) 1996-2005 Paul Mackerras.
+ *
+ * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
+ * Updates for SPARC64 by David S. Miller
+ * Derived from PowerPC and Sparc prom.h files by Stephen Rothwell, IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/types.h>
+
+#include <asm/bitops.h>
+#include <asm/prom.h>
+
+/* flag descriptions */
+#define OF_DYNAMIC      1 /* node and properties were allocated via kmalloc */
+#define OF_DETACHED     2 /* node has been detached from the device tree */
+
+#define OF_BAD_ADDR     ((u64)-1)
+
+extern struct device_node *of_find_node_by_name(struct device_node *from,
+        const char *name);
+#define for_each_node_by_name(dn, name) \
+        for (dn = of_find_node_by_name(NULL, name); dn; \
+             dn = of_find_node_by_name(dn, name))
+extern struct device_node *of_find_node_by_type(struct device_node *from,
+        const char *type);
+#define for_each_node_by_type(dn, type) \
+        for (dn = of_find_node_by_type(NULL, type); dn; \
+             dn = of_find_node_by_type(dn, type))
+extern struct device_node *of_find_compatible_node(struct device_node *from,
+        const char *type, const char *compat);
+#define for_each_compatible_node(dn, type, compatible) \
+        for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
+             dn = of_find_compatible_node(dn, type, compatible))
+extern struct device_node *of_find_node_by_path(const char *path);
+extern struct device_node *of_find_node_by_phandle(phandle handle);
+extern struct device_node *of_get_parent(const struct device_node *node);
+extern struct device_node *of_get_next_child(const struct device_node *node,
+                                             struct device_node *prev);
+extern struct property *of_find_property(const struct device_node *np,
+                                         const char *name,
+                                         int *lenp);
+extern int of_device_is_compatible(const struct device_node *device,
+                                   const char *);
+extern const void *of_get_property(const struct device_node *node,
+                                const char *name,
+                                int *lenp);
+#define get_property(a, b, c)   of_get_property((a), (b), (c))
+extern int of_n_addr_cells(struct device_node *np);
+extern int of_n_size_cells(struct device_node *np);
+
+#endif /* _LINUX_OF_H */